On the structure and development of connective substances / by Thomas E. Satterthwaite.

  • Satterthwaite, Thomas E. (Thomas Edward), 1843-1934.
Date:
1876
Catalogue details

Licence: Public Domain Mark

Credit: On the structure and development of connective substances / by Thomas E. Satterthwaite. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    with the view of determining some of the more important facts that Lave been matters of controversy. The name connective substances has been adopted because it is already in use by leading histologists, and because it is an extremely convenient word under which to group together a large number of animal substances that have a very close relation with one another. The name was first proposed by Reichert in 1845, and embraces bone, cartilage, dentine, and the delicate forms called mucous tissue, adenoid tissue, neu- roglia, fat-tissue, fibrillated connective tissue {fibrous tissue), intermuscular tissue, corneal tissue, tendon tissue, and elastic tissue. The general reasons for classifying these substances sep- arately may be stated as follows: They are all said to be de- rived from the middle germinal layer of the embryo;1 one form in one animal is often substituted for another form in another animal, so that fibrous tissue or cartilage in one ani- mal will perform the same function as bone in another, and they have in this way come to be regarded as equivalents of one another in a morphological sense; again, it is quite appa- rent that one form often succeeds another form in the natural life of the body, fibrous tissue or cartilage of youth being transformed into bone in the adult. In the growths of tu- mors, these changes are frequently seen. The word connective tissue, originally proposed by Johan- nes Miiller, as distinguished from connective substance, has also sometimes been applied to one or more members of the same class, and, indeed, it is in this way that much confusion has been produced, for, while some observers have used the word in the broad sense of connective substance, others have limited it to some specific form, such as fibrous tissue (fibril- lated connective tissue). To avoid any such source of error, we shall call each form by its distinctive name, as mucous tissue, adenoid tissue, and the like, and then we shall find that, though there is a strong bond of relation between all the forms, they (many of them) show as distinctive differences as any other tissues in the body. 1 The sustentacula!- tissue of the brain and cord is thought to be an exception to this. Frey's Histology, p. 196.